85134261 has 4 divisors (see below), whose sum is σ = 113512352. Its totient is φ = 56756172.

The previous prime is 85134221. The next prime is 85134311. The reversal of 85134261 is 16243158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85134261 - 2⁶ = 85134197 is a prime.

It is a super-2 number, since 2×85134261² = 14495684792032242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85134211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14189041 + ... + 14189046.

It is an arithmetic number, because the mean of its divisors is an integer number (28378088).

Almost surely, 2^85134261 is an apocalyptic number.

It is an amenable number.

85134261 is a deficient number, since it is larger than the sum of its proper divisors (28378091).

85134261 is a wasteful number, since it uses less digits than its factorization.

85134261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28378090.

The product of its digits is 5760, while the sum is 30.

The square root of 85134261 is about 9226.8229093226. The cubic root of 85134261 is about 439.9143445523.

The spelling of 85134261 in words is "eighty-five million, one hundred thirty-four thousand, two hundred sixty-one".